Quick contact info

Dunn Company is the leading, experienced, residential, municipal and commercial construction company specializing in demolition, deconstruction, commercial salvage, grading, excavating, site preparation and other services throughout the San Francisco Bay Area.

141 Overhill Road Orinda California 94563 510.385.1474 icon_widget_image dunncompany
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Drainage Services in Contra Costa & Alameda

Dunn Company's earthwork expertise includes drainage work for new sites as well as repair of existing drainage systems.

To prevent further erosion, a surface drainage culvert will be installed in this gully.
Here the culvert is in place and the crew is preparing to backfill the excavation.

Slope Stabilization Slide Show

View a series of photos taken at a recent job site where a tennis court was threatened by an unstable adjacent slope.

The drainage services in Contra Costa includes: 

French Drains / Subsurface Drainage

Surface Drains

Downspout / Gutter Tie Ins

Yard Re-Grading

Concrete and Asphalt Removal

Sump Excavation

You can consult our drainage services in Alameda for more information or set your schedule accordingly.